What is the key difference between the chronic and infectious diseases?

a. chronic diseases are contagious, but infectious diseases are not spread between living things.
b. chronic diseases are not contagious, but infectious diseases can be spread between different living things.
c. chronic diseases are more deadly than infectious because they can kill you, but infectious diseases just make you sick and cause disabilities.
d. chronic diseases just make you sick, but infectious diseases are more serious because they can kill you.

which type of pathogen causes diseases like chickenpox and rabies, and cannot be cured?

a. bacteria
b. fungi
c. protozoans
d. viruses

which is a true statement about how germs are spread?

a. animals do not give you germs, only people transfer germs to you.
b. germs can be transmitted between people, animals, or objects.
c. person-to-person contact is required to infect someone with germs.
d. you cannot get germs from something non-living because germs must come from something alive.

ill give 12 points if someone gives me all the right answers ! xdd i know the third one is really easy

What are the genotypic and phenotypic ratios

Consider three unlabeled bottles, each contain small pieces of one of the following metals. - magnesium - sodium - silver the following reagents are used for identifying the metals. - pure water - a solution of 1.0 molar hcl - a solution of concentrated hno3 (a) which metal can be easily identified because it is much softer than the other two? describe a chemical test that distinguishes this metal from the other two, using only one of the reagents above. write a balanced chemical equation for the reaction that occurs. (b) one of the other two metals reacts readily with the hcl solution. identify the metal and write the balanced chemical equation for the reaction that occurs when this metal is added to the hcl solution. use the table of standard reduction potentials (attached) to account for the fact that this metal reacts with hcl while the other does not. (c) the one remaining metal reacts with the concentrated hno3 solution. write a balanced chemical equation for the reaction that occurs. (d) the solution obtained in (c) is diluted and a few drops of 1 m hcl is added. describe what would be observed. write a balanced chemical equation for the reaction that occurs.

Which formula can be used to calculate the molar mass of hydrogen peroxide